Département de Chimie Moléculaire, UMR CNRS-5250, Institut de Chimie Moléculaire de Grenoble, Université Joseph Fourier Grenoble1 , FR CNRS-2607, BP 53, 38041, Grenoble Cedex 9, France.
ACS Appl Mater Interfaces. 2014 Aug 13;6(15):12852-9. doi: 10.1021/am5027852. Epub 2014 Jul 25.
Nanocomposite anode materials for water oxidation have been readily synthesized by electrodeposition of iridium oxide nanoparticles into poly(pyrrole-alkylammonium) films, previously deposited onto carbon electrodes by oxidative electropolymerization of a pyrrole-alkylammonium monomer. The nanocomposite films were characterized by electrochemistry, transmission electron microscopy, and atomic force microscopy. They showed an efficient electrocatalytic activity toward the oxygen evolution reaction. Data from Tafel plots have demonstrated that the catalytic activity of the iridium oxide nanoparticles is maintained following their inclusion in the polymer matrix. Bulk electrolysis of water at carbon foam modified electrodes have shown that the iridium oxide-polymer composite presents a higher catalytic activity and a better operational stability than regular oxide films.
通过将氧化铱纳米粒子电沉积到先前通过吡咯-烷基铵单体的氧化电化学聚合沉积在碳电极上的聚（吡咯-烷基铵）薄膜中，很容易合成用于水氧化的纳米复合阳极材料。通过电化学、透射电子显微镜和原子力显微镜对纳米复合薄膜进行了表征。它们对氧析出反应表现出有效的电催化活性。来自塔菲尔图的数据表明，氧化铱纳米粒子的催化活性在包含在聚合物基质中后得以保持。在泡沫碳修饰电极上进行的水的体积电解表明，氧化铱-聚合物复合材料比常规氧化物薄膜具有更高的催化活性和更好的操作稳定性。
